Metallic shoe.



G. W. SASS.

.METALLIC SHOE.

APPLoATIoN FILED JULY 21, 1911. l

. 7 5 8 S WiTnesscs lnvenor",

ma/,MM

'By his arTorneyS;

GEORGE W. SASS, OE MINNEAPOLIS, MINNESOTA.

METALLIC SHOE.

Application led July 21, 1911.

`Speciication of Letters latent.

Patented J une 4, 1912.

Serial No. 639,754.

To all whom t may concern Be it known that I, GEORGE W. SAss, a citizen of the United States, residing atthe city of Minneapolis, in the county of Hennepin and State of Minnesota, haveinvented certain new and useful Improvements in Metallic Shoes; and I do .hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to boots and shoes of that type which are provided with metal soles and heels, and which are especially adapted for the use of miners, railway-men, quarry-men, brewers, and for use by persons worln'ng in creameries.

Creameries, as is well known, are usually provided with concrete floors over which water continuously flows. The metal soles, with upturned lianges, are impervious to water but are worn away quite rapidly by.

the concrete floor.

Hitherto, it has been common to provide a sole of a shoe with an intermediately located transversely extended wearing bar which serves the further important function and constitutes a sort of a pivot orfulcrum over which the shoe or boot will rock in the act of walking, thus relieving the wearer from undue fatigue which would otherwise be due to the inflexibility of the sole. I-Iitherto, these wearing bars have been cast or otherwise formed integral with the sole, and hence, when worn away, the shoe is rendered useless. Also, the metal heels of the soles wear away rapidly.

My present invention provides, in the one instance, a detachable or replaceable wearing bar; and, in the other instance, a detachable or replaceable supplemental heel. These detachable or replaceable elements adapt the shoe or boot to be worn and until it is worn out in its body portion, and hence, at a very trifling cost, very many times increases the life of this type of shoe or boot.

In the accompanying drawings, which illustrate the invent-ion, like characters indicate like parts throughout the several views.

Referring to the drawings,--Figure 1 is a `yiewin`side elevation with some parts in section, showing-theimproved shoe; Fig. 2 is a bottom plan view ofthe shoe; Fig. 3 is a section taken on the line :c3 m3 of Fig. 2;

and, Fig. 4 is a section taken on the line m4 m4 of Fig. 2.

The numeral 1 indicates the upper orbodyy portion of the shoe which may be of any suitable style and material, but is usually made of leather. The metal sole 2 has an integrally formed heel 3, and a continuous upturned flange 4 to which the shoe body 1 is secured, preferably by rivets. Preferably the said integrally formed portions 2, 8 and 4 are formed from an alloy, the 'chief element of which is aluminum, and which will, therefore, not corrode; and may be either cast or stamped into proper form. The wearing bar 5 is preferably of a harder metal such as steel, and is made dovetailed in cross section, and lits in dovetail seats formed in the intermediate portions of reinforcing flanges 6, which latter are formed integral with the shoe sole, and serve to stiften the met-al shoe sole at a point where it is most likely to crack. The wearing bar 5,`as is obvious, is detachable and replaceable, and is preferably secured to the shoe sole by small. screws 7, as best shown in Figs.

2 and 3.

The supplemental and detachable orreplaceable wearing heel 8 is preferably formed with a simple depression or with a `longitudinally depending flange, and, like the wearing bar 5, is preferably made of a hard metal such as steel. It is detachably secured to the heel proper by screws 9 which, as shown, are passed therethrough and through the bottom plate of the metallic heel 3, and are screwed into a wooden heel filling block 10. In some instances, however, said screws 9 will have threaded engagement directly with the metallic bottom of the heel 12.

As is evident, when the wearing bar 5 and the supplemental heel 8, or either thereof, are badly worn, they may be detached' and unworn corresponding members substituted therefor, thereby, as already indicated, very greatly increasing the wearing life of the shoeI or boot.

What I claim is:

1. A shoe or boot provided with a metallic sole having longitudinal reinforcing ribs, and provided with a detachable and replaceable wearing bar extended transversely of said sole through lthe said reinforcing ribs.

2. A shoe or boot provided with an incured, and provided With `a detachable and.

replaceable Wearing bar and With a detachable and replaceable supplemental Wearing:

heel.

3. The combination with a shoe or boot provided With a metallic sole and heel and formed With longitudinal reinforcing ribs, of a ldetachable and replaceable Wearing bar having dovetailed engagement With the said ribs.

4. The combination With a shoe or boot having a metal sole and heel, the said sole having longitudinal laterally spaced reinforcing ribs, a detachable and replaceable Wearing bar having dovetailed engagement With the intermediate portions of said reinforcing ribs, and screws detachably securing said Wearing bar to the said metal shoe 20 sole.

5. A shoe or boot provided with a metal sole yand heel, and having a supplemental Wearing heel formed With a recessed central portion, and screws applied to the recessed. 25 central portion of said supplemental heel and -to the heel proper, for detachably and replaceably securing the said supplemental heel to the heel proper.

In testimony whereof I ailix my signature 30 in presence of two Witnesses.

GEORGE W. SASS.

Witnesses: Y

WINIFRED WICKLAND, HENRY D. KILGoRE.

Copies of this patent may be obtained for five cents each, by addressing :the `Commissioner of Patents, Washington, D. C. 

